发明名称 Tetherable game ball
摘要 A tetherable game ball is provided that includes a resilient spherical hollow ball (12) having an aperture (14) through which a knotted line (17) extends therethrough and forms a loop extending exteriorly of hollow ball (12) allowing a tether to be secured thereto. Aperture (14) is tapered inwardly and prevents a rigid force distributing plug (20) located within hollow ball (12) from being pulled through and out of aperture (14). The game ball can be constructed so as to have rebound and elastic properties similar to those of a racquetball.
申请公布号 US4240629(A) 申请公布日期 1980.12.23
申请号 US19790001742 申请日期 1979.01.08
申请人 LIGON, SAMUEL B;SONG, JAE M 发明人 LIGON, SAMUEL B;SONG, JAE M
分类号 A63B43/00;(IPC1-7):A63B39/00;A63B43/02 主分类号 A63B43/00
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